SoftSwim Stain Control (1 qt)

BioGuard's SoftSwim Stain Control helps prevent metals from settling in the water and staining pool surfaces. This product is intended for use in swimming pools with plaster surfaces, or on any surface where dissolved metals such as iron, copper and manganese are present. SoftSwim Stain Control also helps maintain the presence of SoftSwim B and C. Each SoftSwim product is formulated to work specifically with the biguanide chemistry of the SoftSwim program.  Product Dosage: Routine Maintenance 16fl oz per 10,000 gallons of water during start up or significant make-up water is added Metal Treatment: 32fl oz per 10,000 gallons of water for every 2ppm of metals Fresh Stain Removal: 32 fl oz per 10,000 gallons of water Directions: Treatment of metals in pool water: Backwash filter, then allow pump to run continuously. If the total amount of metals present in your swimming pool water exceeds 2ppm, use BioGuard Sparkle Up Filter Aid to help remove metals. Use 1 quart of BioGuard SoftSwim Stai